AGRICULTURE
Paper-II
(Time Allowed: Three Hours)

INSTRUCTIONS
Candidates should attempt questions and 5 which are compulsory, and any THREE of tile remaining questions selecting at least ONE question from each Section. The number marks carried by each question is indicated at the end the question.

Answers must be written in ENGLISH.

SECTION
I . Answer any FOUR of the following In about 150 words each :-IOx4=40
Enumerate different biotechnological techniques being used for crop improvement programme. 10
What are the various steps. involved In the production of certified seeds? 10
Describe in brief the structural and numerical changes in chromosomes. 10
Discuss the relevance of male sterility in plant.breeding and briefly mention its limitations.
Describe parthenogenesis found in insects with suitable examples. 10

2. Write short notes on the following in about ISO words each :-IOx4=40
What is self incompatibility How can this problem in plant breeding programme be overcome J0
Environment-friendly approaches in pest management programme. 10
Photoperiodism. 10
Phytohormones and their role in plant growth. 10


3. Distinguish between each pair below in about 150 words each :-IOx4=40
Parasite and predator.

Butterfly and moth.

Mass selection and pure line selection.

Immunity and resistance.


4. Give the scientific name, classification and nature of damage caused of the following pests IOx4=40
White grub.

Red hairy caterpillar.

Brinjal fruit borer.

Mango jassid.



SECTION

5. Write short notes on any FOUR of the following in about 150 words each :-IQx4=40
Package of practices of Maize Cultivation. 10

Eeta-hormones. 10

Cultural methods of pest tnanagement. 10

Heterosis. 10

Insecticide resistance management. 10


6. Distinguish between each pair below In about 150 words each :-IOx2=20
Hibernation and Diapause.

Acaricide and Nematicide.


Name four important storage pests of pulses. Describe briefly the biology and management of anyone of them. 10

What are transgenic plants? Discuss in brief their merits and demerits. 10


7. What are carbamate insecticides? Discuss in brief their mode of action. 4+6=10
Compare in brief diffusion and osmosis. 10

Discuss the method of onion seed production. 10

Briefly enumerate the major constraints in the production of fruits and vegetables in India. 10


8. Write short notes on the following in about 150 words each :-1Ox4=40
Vernalisation.

Propagation of ornamental plants.

Bio meter and its significance in pest management.

Organization and functions of ICRISAT.